Question: The preferred material for repair of fractured denture base is______________?

• 1. Chemically cure resin
• 2. Heat curve resin
• 3. Light cure resin
• 4. Vinyl resin

Question: Dispersion of crystalline phase to strengthen ceramics results in_________________?

• 1. dispersed porcelain
• 2. Glazed porcelain
• 3. aluminium porcelain
• 4. All of the above

Question: For porcelain fused to metal crown, the porcelain should have ______________?

• 1. High fusion expansion
• 2. High fusion temperature
• 3. Linear coefficient of thermal expansion less than that of metal
• 4. Linear coefficient of thermal expansion more than that of metal

Question: The ideal temperature of water bath for softening fluid wax is about________________?

• 1. 51 to 54 degree F
• 2. 51 to 54 degree C
• 3. 70 to 75 degree F
• 4. 70 to 75 degree C

Question: Crocus cloth is________________?

• 1. Emery
• 2. Garnet
• 3. Pumice
• 4. Rouge

Question: The most toxic form of mercury is_________________?

• 1. Methyl and ethyl mercury
• 2. Mercury vapour
• 3. Inorganic mercury forms
• 4. Mercury sulphide

Question: Ceramics fired to metals are processed by_______________?

• 1. Heat pressing
• 2. Machining
• 3. Sintering
• 4. Slip casting

Question: When porcelain is basked against metal, it should possess a________________?

• 1. high fusion expansion
• 2. high fusion temperature
• 3. linear coefficient of thermal expansion less than but close to that of metal
• 4. Linear coefficient of thermal expansion greater than, but close to that of the metal

Question: Clogging of an abrasive wheel with debris causing reduction of abrasive action is called________________?

• 1. Blinding
• 2. Buffing
• 3. Dressing
• 4. Truing

Question: Which of the following releases single wavelength of energy ?

• 1. QTH
• 2. PAC
• 3. LED
• 4. Argon lasers